"""
字符
"""
checkstr=input('啦啦啦啦啦啦\n')
flag=True
low=0
high=len(checkstr)-1
while low<high:
    if checkstr[low] !=checkstr[high]:
        flag=False
        break
     low+=1
    high-=1
if flag:
    print('啦哦啦'.format(checkstr))
else:
    print('啦啦哦哦啦啦'.format(checkstr))






a=15
b=12345678.1234567
s='I love Python!'
print('a=%05d'%a)
print('b=%8.3f'%b)
print('%17s'%s)
print('%-17.6s'%s)



